FUTABA 9C RADIO & BLADE CP

[Beginner9]

Can A Futaba 9chfs Tx Be Programmed To Fly A Blade Cp Heli? I Have Tried And Have Not Been Successful. I Have Tried All Swashplate Types And Reversed Some Servo's. It Seems I Just Can't Get All Servos To Do The Right Thing As There Is Always One Function Not Working Correctly Because A Servo Is Going The Wrong Way. Please Help!!

[tdswan]

Don't know about the programming on a Futaba, but I'm sure there's a screen somewhere in your programming mode to reverse certain channels ( JR Does, it can't be something new.). Try reversing the ones you need reversed and "VOILA" there ya go. Blade CP should be a 120 deg swashplate.

[Motions]

Try this post... http://www.rcgroups.com/forums/showthread.php?t=433884

[Beginner9]

Ok thank you very much! I will give that a try in the next couple of days. It sounds very promising as I already know that it is not just a matter of not having the correct swash plate or a servo reversed. Also the fact that it is recognized that the swash plate that the blade has is 120 degrees opposite of the transmitters swash plate type in the set up.This is likely the reason why and were I am running into trouble! Thanks again and I will keep you posted, Beginner9.

[tdswan]

Just reverse the elevator channel if the swash is backwards.

[Beginner9]

A big thanks to Motions & tdswan. You guys did it! I am now flying the Blade CP with my 9C TX. What a difference as I have 3 timers to monitor and also pitch and throttle hover knobs for fine tuning during hovering. I have to do some fine tuning now as I noticed the swash plate sits up a about 1 or 2 mm higher on the main shaft as opposed to the stock Blade CP TX. I'm not sure how to do that yet but at least all the servos are responding correctly. I also noticed when I quickly throttle down the heli seems to almost push itself down from in the air. I'm sure it is likely because of the swash plate sitting lower causing the negative pitch on the blades. I just have to play a bit. PS I have to go and read some more of the RC HELI ISSUE #3 that is beside my coffee cup!! Beginner9.

[Motions]

You just need to adjust your pitch settings to get the swash in the correct place and more positive pitch overall. Also if you haven't done so already, setup the revo mix. It is so much better. You can punch the throttle and the tail will stay in one spot. This is something you'll have to play with, every setup is different.

[Beginner9]

Motions I have a question for you! When you say that I need to adjust my pitch settings to get the swash in the correct place and more positive pitch overall. Are you talking about a mechanical linkage adjustment or an electronic TX adjustment? Beginner9

[Motions]

If you haven't changed anything mechanically it should be correct so change the pitch in the radio to get it correct. The best way is to find out what percentage is 0 deg on the blades and go from there. If you don't have a pitch gauge, just try eye balling the blades.

[Beginner9]

Thanks Motions; I have not changed anything mechanical on the Blade! I also do own a micro pitch guage. When you say to "change the pitch in the radio" what screen in the TX do you go to. For example is the pitch adjusted in the End Point Adjustment feature by decreasing the value's of the 3 swash plate servo's? TIA Beginner9

[Motions]

NO NO NO

You adjust the pitch in the pitch curve setting. Go into setup then there should be a pitch curve menu. It will have 5 settings, (1, 2, 3, 4, 5).

1 is full down stick 0%
2 is 1/4 stick
3 is 1/2 stick
4 is 3/4 stick
5 is full up stick 100%

In normal, you want about +5 to +5 1/2 degrees at about 5/8 - 3/4 stick. Set position 1 to about -5 degrees and position 5 to +10 degrees.

[Beginner9]

Motions you are the MAN; Since the Factory setting is 0% throttle stick is 0 deg pitch and 100% throttle stick is 10 degrees pitch in the Normal flight mode. Translates to 9C Pitch Curve settings of 1=50% 2=62.5% 3=75% 4=87.5% and 5=100% which yields 1=0 degrees 2=2.5 degrees 3= 5 degrees 4= 7.5 degrees and 5=10 degrees of pitch on the main rotor blades. Now when you turn off the factory TX and then turn on the Futaba 9C the swash plate remains in exactly the same postion. It also test flies identical to the factory TX. I still have some playing around to do as I think I'll have to add some positive exponential to duplicate the same reaction time compared to the factory TX. I'll also have to try the REVO MIX feature and of course program the Idle Up 1. I have to get some shut eye now, Beginner9

[Beginner9]

I contacted Futaba regarding using a Futaba 9C TX with the Great Planes Realflight Simulator program. The question was; Is it Ok to have the module removed from the back of the TX when in use with the G3? Also does it hurt having the TX Antenna Collapsed all the way when doing the same? The reason for the second question arose because I read this from the Futaba websight! "When I am using my radio for programming, setup within my house, experimenting, etc, is there anything special I should do?"
"With ANY transmitter (modulared or non-modular), you should ALWAYS extend your antenna to at least the bottom or first segment when turning the radio on. If you leave the radio on with the antenna collapsed for more than 5 or 10 minutes, the internal components will be unnecessarily exposed to incorrect matching of the output circuit to the antenna. This may shorten the life or even immediately damage the output circuitry of the transmitter." The Futaba E-MAil response was this!!
"Thank you for your recent e-mail.

It is best to have the module removed and the antenna collapsed when using a flight simulator.

Sincerely,
John G.
Product Support Lead Technician
Futaba Programming Technician
Great Planes Model Distributors
www.realflight.com
NO AUTORESPONDER"
JUST A LITTLE FOR YOUR INFORMATION,Beginner9